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I already run all payments through an in-house service we simply call “paymentgateway.” Before funds leave an account I now want an AI decision layer that can instantly approve, flag, or decline a request based on two new rule sets: • Transaction limits – the model needs to recognise and enforce daily, per-transaction, and monthly caps that can vary by user tier and currency. • User eligibility – it should check a customer’s current status (KYC passed, account age, risk score, etc.) and decide whether the transaction can proceed. The gateway is live, so the AI must slot in without disrupting existing calls to our API. Right now we only interface with our own service, but future connectors to PayPal, Stripe, or Square should stay possible, so keep the design provider-agnostic. My preferred flow is: payment request → AI rules engine → gateway authorisation. I will expose webhooks or a middleware endpoint for you to hook into. You are free to work in Python, Node, or another performant language as long as the solution comes back as a RESTful micro-service (Docker container is ideal). Deliverables 1. Rule-based / ML model that evaluates the two conditions in <200 ms 2. API endpoints (JSON over HTTPS) with authentication 3. Integration guide and sample code that shows the call sequence with success, hard fail, and soft-fail responses 4. Unit and load tests demonstrating correct handling of the daily, per-transaction, and monthly limits plus user eligibility scenarios Acceptance criteria: end-to-end test payment hits the AI layer, returns the appropriate decision, and logs the outcome to our dashboard. If you’ve done similar compliance or risk engines, let me know—especially anything tied into multiple gateways.
ID do Projeto: 40173394
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I can add a provider-agnostic “Decision Service” between your app → AI rules engine → paymentgateway without changing your existing gateway contract. Approach (fast + explainable): * Start rule-based (deterministic) for limits + eligibility (best for compliance + <200ms). * Optional ML risk score later, but decisions remain traceable. Logic covered: 1. Transaction limits: per-tx / daily / monthly caps by user tier + currency, with idempotency to prevent double counting on retries. 2. User eligibility: KYC status, account age, risk score bands, blocked flags (and optional device/session signals). Decisions returned (3 states): * APPROVE → call paymentgateway * DECLINE (hard fail) → stop + reason code * FLAG (soft fail) → manual review / step-up, no gateway disruption Microservice (Docker, REST JSON): * Node.js (Fastify) or Python (FastAPI), JWT/HMAC auth (mTLS optional) * POST /v1/decision + health/metrics endpoints * Redis for fast counters + DB as source of truth * Structured logs + full audit trail (reason codes, thresholds hit, latency) Deliverables: * Rules engine meeting <200ms * API + Dockerfile + sample integration code * Unit + load tests for caps/eligibility + concurrency * Clear runbook (approve/flag/decline flows) Share your current request payload + how you track tier/currency limits, and I’ll map the exact input/output schema.
$500 USD em 7 dias
7,4
7,4
128 freelancers estão ofertando em média $511 USD for esse trabalho

Hello, I’m Muhammad Awais, and I will build a provider-agnostic, high-speed decision layer between paymentgateway and your gateway authorisation. The system will enforce two rule sets: transaction limits (daily, per-transaction, monthly) varying by user tier and currency, and user eligibility (KYC status, account age, risk score). It will slot into your live flow without disrupting existing API calls and stay ready for future connectors to PayPal, Stripe, or Square. The solution will be a RESTful micro-service in Docker, with endpoints secured by tokens, returning clear JSON decisions within 200 ms. It will include a robust integration guide and sample code showing the call sequence for success, hard fail, and soft-fail. I will deliver a rule-based engine plus a lightweight ML scoring component to handle edge cases, plus comprehensive unit and load tests that verify all limits and eligibility scenarios. The design emphasizes reliability, ease of deployment, and a smooth path to dashboard logging. What currencies and user tiers should be supported at go-live, and how should rules vary by tier/currency? What data fields will you expose to the engine for KYC, account age, risk score, and how will sensitive data be protected? What authentication method and security requirements for REST endpoints (OAuth2, JWT, mutual TLS)? How should dynamic rule updates be deployed (hot reload vs versioned updates, CI/CD)? What are your logging and monitoring expectations (dashboard fields,
$500 USD em 23 dias
9,1
9,1

Hello, Building on our innovative approach to website design and development, our team at Yasir Software has taken strides in incorporating cutting-edge technologies to deliver secure, efficient, and reliable digital solutions. Having successfully navigated complexities similar to your project's AI Compliance for payment gateways, we believe we can actively contribute to your organization's peace of mind. Our technical expertise extends beyond HTML and PHP to include Python and Node- the latter being one of your preferred languages for backend integration. With an unblinking dedication to preserving functionality while integrating complex features like the one you're offering, we emphasize minimum disruption of existing service calls with micro-services and containerized solutions like Docker. Moreover, our experience in SEO services ensures that any integration is scalable and future-proof without compromising privacy or security. What sets us apart is not just our deep technical prowess but also our unwavering commitment to remarkable customer experiences. We have an impeccable record for delivering projects on time, within budget, and above expectations. We go the extra mile by providing detailed integration guides along with ample code samples, so you face no roadblocks during deployment. With us at Yasir Software handling your AI compliance layer, you can focus on growing your business knowing that we've got the algorithms and the analytics covered. Thanks!
$499 USD em 6 dias
8,6
8,6

Hi, I’m an experienced developer in Python and Node.js and can build your AI-powered decision layer for your in-house paymentgateway as a RESTful microservice in a Docker container. I’ll implement a rules engine that evaluates: 1. Transaction limits (daily, per-transaction, monthly) based on user tier and currency 2. User eligibility (KYC, account age, risk score, etc.) The service will respond in under 200 ms, provide JSON-over-HTTPS endpoints with authentication, and include a clear integration guide with sample request/response flows (success, hard fail, soft fail). I’ll also deliver unit and load tests covering all limit and eligibility scenarios. The system will be provider-agnostic, so future connectors to PayPal, Stripe, or Square can be added without changes to the core logic. I’m ready to start immediately and can share examples of similar compliance/risk engines I’ve built.
$600 USD em 8 dias
8,2
8,2

⭐⭐⭐⭐⭐ Build an AI Decision Layer for Your Payment Gateway ❇️ Hi My Friend, I hope you're doing well. I reviewed your project needs and see you're looking for an AI decision layer for your payment gateway. You don't need to search any further; Zohaib is here to assist you! My team has completed over 50 similar projects for payment systems. I will create a solution that evaluates transaction limits and user eligibility without disrupting your current API calls. ➡️ Why Me? I can easily build your AI decision layer as I have 5 years of experience in developing payment solutions, focusing on AI integration, API development, and microservices. My expertise includes machine learning models, RESTful services, and system integration. Additionally, I have a strong grip on Python, Node.js, and Docker, ensuring a robust and efficient solution. ➡️ Let's have a quick chat to discuss your project in detail and I can provide samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ AI Integration ✅ Payment Gateway Development ✅ RESTful API Design ✅ Machine Learning Models ✅ Python Development ✅ Node.js Development ✅ Docker Containerization ✅ Webhook Implementation ✅ System Integration ✅ Data Analysis ✅ Transaction Management ✅ Compliance Solutions Waiting for your response! Best Regards, Zohaib
$500 USD em 2 dias
8,0
8,0

Hi Muhammad, I will develop a rule-based / ML model that evaluates transaction limits and user eligibility in less than 200 ms. The AI decision layer will seamlessly integrate with your existing payment gateway, ensuring minimal disruption. I will provide API endpoints with authentication, integration guides, and sample code for testing various scenarios. Let's discuss further to ensure a successful implementation. Regards, Sai Bhaskar
$499 USD em 10 dias
7,8
7,8

Hello Muhammad, I am excited about the opportunity to work on the AI Compliance project for your payment gateway. The project requirements align perfectly with my expertise in developing rule-based and machine learning models for real-time decision-making in financial services. I have successfully implemented similar compliance and risk engines in the past, ensuring seamless integration with multiple payment gateways while maintaining high performance and accuracy. My approach involves developing a robust AI rules engine that can evaluate transaction limits and user eligibility within milliseconds, providing secure and efficient authorization for each payment request. I am confident in my ability to deliver the required deliverables, including a RESTful micro-service integrated with your existing gateway and comprehensive documentation for future scalability. I am committed to providing daily updates and open communication throughout the project to ensure a successful outcome. Please find my portfolio for relevant projects here: https://www.freelancer.com/u/eDesignerExpert I look forward to discussing the project details further and collaborating with you to achieve your compliance goals. Best regards, Ramneet
$499 USD em 2 dias
7,6
7,6

Greetings, I’m immediately available to start. I’m a Master Expert in PHP Laravel, CSS/HTML, eCommerce, WooCommerce, WordPress, and Shopify, and a top-rated freelancer. ✅ I need to share a few samples from my portfolio with you. Are you available for a quick chat? Please check it out: https://www.freelancer.com/u/letdevs Cheers! Zubair
$500 USD em 7 dias
6,9
6,9

Hello, I trust you're doing well. I am well experienced in machine learning algorithms, with nearly a decade of hands-on practice. My expertise lies in developing various artificial intelligence algorithms, including the one you require, using Matlab, Python, and similar tools. I hold a doctorate from Tohoku University and have a number of publications in the same subject. My portfolio, which showcases my past work, is available for your review. Your project piqued my interest, and I would be delighted to be part of it. Let's connect to discuss in detail. Warm regards. please check my portfolio link: https://www.freelancer.com/u/sajjadtaghvaeifr
$500 USD em 7 dias
7,2
7,2

As a graphic designer, I have a lengthy and impressive 8+ years of experience in the field. Although my primary area of expertise lies in graphic and website design, I'm thrilled by diverse challenges and believe that this project can harness my problem-solving abilities in unique ways. My adeptness at coming up with creative, tailor-made designs for clients speaks to my capacity to deliver according to your specific requirements. Even though the required skills for this project may not match my specialty directly, I've consistently demonstrated adaptability and an eagerness to learn new tools and technologies. This flexibility affords me the opportunity to comfortably work with Python, Node or any performant language necessary, ensuring that your system is only enhanced without any disruptions. Moreover, proficiency is just one side of the coin; for this particular project I believe my conscientious nature is especially valuable. Given the sensitivity of financial transactions, complying with distinct user metrics as outlined by different payment gateways necessitates utmost attention to detail which perfectly aligns with my work approach. In addition, my previous experience on risk compliance engines gives me a solid foundation on how to approach such projects proficiently and successfully. Let's partner up and create an AI-determined payment system that will revolutionize your business!
$500 USD em 7 dias
6,9
6,9

Hi there, I understand you're looking for a robust AI compliance layer for your payment gateway that can seamlessly integrate into your existing system without disruption. As a top freelancer from California with extensive experience in building real-time decision systems, I am confident in my ability to deliver a solution that meets your needs. My background includes developing compliance and risk management algorithms that effectively handle multiple gateways, ensuring both security and efficiency. I plan to implement a rule-based/machine learning model that addresses transaction limits and user eligibility as specified, ensuring each transaction is processed within 200 ms. I will also provide API endpoints for easy integration, along with comprehensive documentation and testing to validate the solution’s performance. With clear communication and a tight timeline for delivery, I urge you to message me so we can discuss this further and finalize the next steps. What specific metrics or KPIs will you use to measure the success of the AI compliance layer?
$610 USD em 19 dias
6,9
6,9

Hello there, I have carefully reviewed the requirements for the AI Compliance for Payment Gateway project. I understand that you are looking to integrate an AI decision layer into your existing payment gateway system to enforce transaction limits and user eligibility checks without disrupting the current API calls. My proposed project plan includes developing a rule-based/ML model for quick evaluation, creating secure API endpoints with authentication, providing integration guides and sample code, and conducting thorough testing to ensure accurate handling of various scenarios. I invite you to review my portfolio at https://www.freelancer.pk/u/phpxpert89 Please feel free to initiate a chat to discuss the project further. Best regards
$500 USD em 8 dias
6,6
6,6

Hi there, I'm excited about the opportunity to implement an AI compliance layer for your payment gateway. Understanding that you need a rapid decision-making system that respects transaction limits and user eligibility is crucial. With extensive experience in building robust machine learning models and payment systems, I can seamlessly integrate this solution without disrupting your existing API calls. My approach will ensure that our model assesses transactions in under 200 ms and will include detailed API endpoints for secure communications. I will also provide thorough integration documentation and rigorous testing to validate that we meet all set criteria. Let's discuss the next steps to align on timelines and specific requirements, ensuring we deliver a high-performing compliance engine tailored to your needs. Best regards,
$500 USD em 10 dias
6,7
6,7

As the CEO of Web Crest and head of a talented 10-member team, my background couldn't be better suited for your project. We boast an impressive portfolio that includes extensive work in API development, digital branding, AI-powered solutions, and risk analysis engines. Our prior experience aligns so directly with your requirements it's almost uncanny. Most notably, our ML models have consistently performed in sub-200 ms timeframes for previous applications - we'd be excited to bring that same level of efficiency to your payment gateway. Further, we're proficient in several performant languages, including Python and Node.js, which could benefit your RESTful micro-service need quite well. And thanks to our insightful approach to design, we can ensure easy integration at any point. Finally, our ability to develop scalable architectures on cloud-based platforms like AWS or Google Cloud opens up avenues for future scalability and possible connector implementations.
$500 USD em 6 dias
6,4
6,4

With over 8 years of experience in building intelligent systems and risk engines, I am confident that I have the skills and knowledge required to successfully develop and implement the AI compliance solution you are seeking. My expertise spans across Python, Machine Learning, Integration, and Node.js – all of which align perfectly with your project requirements. Whether it's creating an efficient rules engine or designing RESTful micro-services within Docker containers, I am well-versed with the tools you've mentioned. Lets connect
$500 USD em 2 dias
6,4
6,4

Hello, I understand you’re looking for an AI-driven compliance layer that can sit cleanly in front of your existing paymentgateway service and make real-time approve, flag, or decline decisions without disrupting live traffic. I have experience building provider-agnostic risk and compliance engines for payment flows, focusing on low-latency decisioning, clear rule enforcement, and future extensibility toward gateways like Stripe or PayPal. My approach prioritizes determinism first, with optional ML augmentation where it adds measurable value. I will design a lightweight RESTful microservice (Dockerized) that evaluates transaction limits and user eligibility in under 200 ms. The core engine will enforce daily, per-transaction, and monthly caps by user tier and currency, while also validating KYC state, account age, and risk indicators. The service will expose secure JSON endpoints, return explicit decision codes (approve, soft-fail, hard-fail), and log outcomes for dashboard visibility, all while remaining decoupled from any single payment provider. Delivery includes the rules engine or hybrid ML model, authenticated APIs, sample integration code demonstrating the full call sequence, and unit plus load tests covering all limit and eligibility scenarios. You’ll receive clear documentation so your team can extend rules, add new gateways, or evolve the model without refactoring the core payment flow. Thanks Asif.
$750 USD em 5 dias
6,6
6,6

Hello, I specialize in AI decision engines and built & customized large scale payment risk and rules systems. The main challenge here is adding smart approvals without slowing or breaking your live gateway. I am certified in Python AI development, and I will solve this by building a fast rule-first engine with ML support that plugs in as a REST service and responds in under 200 ms. You keep your current flow, but gain instant approve, flag, or block decisions with clean logs and future-ready connectors. A few quick questions: are user tiers stored in paymentgateway or fetched from another service? Do limits reset by calendar day or rolling 24 hours? Should flagged payments auto-hold or just alert? Do you want rules editable without redeploy? Best regards, Dev S.
$500 USD em 4 dias
6,4
6,4

As an accomplished full-stack developer with over seven years of professional experience, I offer a holistic understanding of system applications which I am confident will be an asset to your project. Having successfully delivered 80+ projects, I have proven capabilities in ensuring quality assurance and developing strategies to support complex systems. My in-depth proficiency encompasses a number of languages including Node.js and Python which are both ideal for building performant AI systems. On top of that, my Tech skill-set also extends to Docker containers, providing you with a seamless, scalable solution. Additionally, my expertise in API endpoints design would ensure secure and efficient integration with your existing platform. In conclusion, my extensive experience in dealing with technologies like Node.js, Python and Machine Learning as well as my ability to provide a user-friendly experience coupled with a long history of delivering high-quality work promptly make me the ideal candidate for your project. I assure you; incorporating an AI decision layer into your payment gateway without any major disruptions is a challenge I am more than ready to embrace. Let’s bring the power of AI to your finances while making sure that everything runs smoothly!!! Thank you!!!
$750 USD em 7 dias
6,7
6,7

Hello there! Do you have a preference for implementing the rules as a strictly rule-based engine first, or would you like me to include machine-learning components to adapt thresholds over time? I can develop a high-performance AI decision layer for your payment gateway that evaluates transaction limits and user eligibility in under 200 ms per request, returning instant approve, flag, or decline decisions. The solution will be a provider-agnostic RESTful microservice (Dockerized) with secure API endpoints, sample integration code, unit and load tests, and logging to your dashboard, designed to slot seamlessly into your existing gateway flow while remaining flexible for future connectors like PayPal, Stripe, or Square. I’ll also provide full documentation showing request/response sequences for success, hard-fail, and soft-fail scenarios. Would you like the service to support asynchronous callbacks for flagged transactions, or keep all decisions synchronous for immediate gateway responses? Please feel free to message me so we can discuss the project in more detail. Best regards, Bryson Henniger.
$500 USD em 5 dias
5,9
5,9

Hi there, I'm excited to propose an AI compliance solution for your payment gateway. With expertise in API development, ML, Python, and Node.js, I'll create a rule-based model that enforces transaction limits and checks user eligibility seamlessly. The solution will integrate via RESTful micro-services without disrupting your current setup, ensuring instant approvals for payments. Let's discuss how this cutting-edge AI layer can enhance your system workflow. What specific details do you want to prioritize during the implementation process?
$499 USD em 7 dias
6,0
6,0

Hi Muhammad R., I am very interested in building the decision layer you describe. I understand you need a service that checks transaction limits (daily, per-transaction, monthly by user tier and currency) and user eligibility (KYC, account age, risk score) and returns approve, flag, or decline without disrupting your current gateway flow. I have built payment compliance and risk engines that sit before gateway authorization and that have connected to PayPal, Stripe, and other processors. I can deliver a rule-based plus ML model that responds under 200 ms, a RESTful JSON API with authentication, logging, unit and load tests. I will deliver a Dockerized microservice, integration guide, and sample code showing success, hard fail, and soft-fail. Quick question: do you have a standard format for user tiers and risk scores? Best regards, Saad J.
$500 USD em 10 dias
5,5
5,5

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